 With the sound era established, the Fleischers revived the song film series as "Screen Songs" in February 1929 on the strength of being the holders of the original Patent on the concept.Though Ko-Ko the Clown had been temporarily retired due to complications with the dissolution of the original Inkwell Studios, the "Bouncing Ball" was retained.This new series ran a full seven minutes, with more animation than the early Song Car-Tunes, built around the theme of the featured song.